highly recommende, if one wishes to score 50 and above in quant

Quant
The quant test of gmat club is really awesome. Especially the problems of number system. Number system is one of the toughest section in GMAT and solving gmat club number system questions helps you achieve high level of accuracy in this section. I recommed you to please solve all these question twice, rembering all the concept you find new while solving problems.
others sections of quant is also very good. do solve all the question
Verbal
So far I have solved SC and CR question. In both the section you will find some of the good question. But explanation of many question is not upto the mark. But as GMAT CLUB gives you an option to ask directly an expert.So if you feel explanation is not sufficient, you can always contact an expert.
Thank you